The photo above shows a close-up view of the terminal inflorescence of black alpine sedge. Note that perigynia spread or become deflexed as they mature. Photographed along the South Climb Trail about one-half mile below the Crescent Glacier on the southern slopes of Mt. Adams....................August 23, 2008.

The photo above shows another view of the terminal inflorescence of black alpine sedge. Photographed along the South Climb Trail about one-half mile below the Crescent Glacier on the southern slopes of Mt. Adams....................August 23, 2008.

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The 3 photos above show close-ups of the perigynia and their dark, subtending scales of black alpine sedge. Click each photo to see enlarged views. Note that the photo at right (or bottom, depending how it is viewed on your computer) has 3 stigmas. Photographed along the South Climb Trail about one-half mile below the Crescent Glacier on the southern slopes of Mt. Adams....................August 23, 2008.

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The photo above shows views of black alpine sedge within their habitat. Click either photo to see an enlarged view. Photographed along the South Climb Trail about one-half mile below the Crescent Glacier on the southern slopes of Mt. Adams....................August 23, 2008.

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The2 photos above show close-ups of the inflorescence (left) and grooved leaf (right) of black alpine sedge. Click the photo of the inflorescence at left to see an enlarged view. Photographed along the South Climb Trail about one-half mile below the Crescent Glacier on the southern slopes of Mt. Adams....................August 23, 2008.

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The 2 photos above show close-ups of the perigynia and inflorescence of black alpine sedge as seen in moist meadows (around the periphery of a shallow pond) along the Pacific Crest Trail about one-half mile west of its junction with the Stagman Ridge Trail #12......................September 13, 2008.

The photo above shows black alpine sedge as collected from riparian areas at the base of old moraines at the terminus of the Adams Glacier, Mt. Adams.........................September 18, 2008.